In order to eliminate pollution, improve process indicators, and gradually develop a method. The first with steam mixed Cu-Pb concentrate was warmed to about 60 ℃, in acidic and neutral pulp, brass can be improved floating mine, galena is suppressed. There is no need to add other chemicals during the sorting process. The obtained copper concentrate has high grade and low Pb and Zn. It can reduce environmental pollution because it does not need to be added with chemicals. The mechanism of heating and sorting is considered to selectively desorb the surface of galena. The collector and make its surface oxygen hydrophilic.
In addition to the warming separation without dosing, there is also a warm separation of the inhibitor. When such a mixture of copper and lead concentrates mineral separation plant, steam heating of pulp, added Na 2 CrO 4 as inhibitor. The control conditions are: temperature 60 ° C, pH = 7.5 ~ 8. Na 2 CrO 4 1.5 kg/t.
Dai concentrator within Japan Kosaka complex of zinc sulfide ores of copper and lead, which separation of copper and lead concentrate by mixing warming method. The production process is shown in Figure 1. The copper-lead mixed concentrate is steamed in a stirred tank for 10 min, the temperature is 60-70 ° C, and its pH is controlled by sulfuric acid and lime = 5 to 5.5. The copper concentrate obtained by adding no agent during copper flotation contains Cu 28.80%. Lead concentrate contains 52.68% Pb. Copper concentrates are of higher quality and lead concentrates are of lower quality because this process causes zinc in the mixed concentrate to enter the lead concentrate.
Figure 1 Copper and lead separation process of antimony ore in Japan
The central Ebike Motor of Electric Bicycle is a commonly used component on Electric Bikes. Three types of motors used on power assisted bicycles; Front wheel hub motor, center mounted motor, rear wheel hub motor. The mid mounted motor is a rising star among these three types of motors. After undergoing lengthy technological progress and updates, it has only been developed and used on Electric Bicycles in recent years. Installed in the middle pedal position of the bicycle. It is precisely because of the characteristics and installation location of the central motor that we usually apply it to Lithium Battery mountain assisted bicycles. Because off-road cycling enthusiasts may not always have flat mountain roads, and may even be very bumpy. Riding is quite laborious, so there is an urgent need for external force to provide instantaneous main thrust. Neither the rear wheel hub motor nor the front wheel hub can play this effective role, so the central motor is called the best choice for Assisted Electric Mountain Bicycles.
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